Re: K24/3.5 hood revisited

[george de fockert]

yes, the metal rectangular smc takumar 1:3.5/24 hood does fit the K mount
version of this lens.

george

- Original Message -
From: "Kostas Kavoussanakis" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, November 27, 2003 1:49 PM
Subject: K24/3.5 hood revisited


>
> Does anyone know if the hood for the 24 Takumar will fit the K24/3.5
> properly and provide adequate protection? I have not been able to find
> a tulip hood yet, as suggested in the previous similar thread I
> started.
>
> Thanks,
> Kostas
>
>

Re: false comparison lp/cd versus film/ccd

[george de fockert]

From: "Sylwester Pietrzyk" <[EMAIL PROTECTED]>

> On Thu, 20 Nov 2003, Cotty wrote:
>
> > Odd, I have CD-Rs that were burned nearly 6 years ago and are still
> > readable by my computers. Surely shome mishtake?
> Me too. I have some CD-Rs with my company's archives that are older than
> even 7 years. One thing: they are all from well known brands (Philips,
> TDK, Verbatim)
>
> --
> Best regards
> Sylwek

Me too, most of my older CD-r's are still readable, but with a newer
generation (when CD-R market was booming and prices plummeting) I did  have
had my share of unreadable CD-R's.
The problem is that you know what batch of  CD-R's is bad, when it is too
late.

George

false comparison lp/cd versus film/ccd was:Re: OT - Re: Scratching LP's ( not so much, since discussion is getting back into Pentax and photography)

[george de fockert]

Hi,
just a warning to all of you digital shooters,

CD replaced LP because it was for most people an improvement in :
1 handling
2 sound quality
3 longlivity

CCD/CMOS will replace film because it is for most people an improvement in :
1 handling/processing
2 image degradation (is not relevant for those 10*15 prints)
3 memory loss.

People do not yet realize that their inkjet printouts will be faded in a few
years, and
their CD-R are no longer readable, even on perfect working CD-R readers.

Pressed CD's have a lifetime of decades, but CD-R CD-RW etc. have a lifetime
of months to maybe some years,
depending on the used dye, and storage method.
But who knows what type of dye is used in the CD-R they bought, let alone
what the expected lifetime will be.

If you make family pictures now, to be able to show to your kids after a few
years, do it on film.
Or copy your CD-R's every year to a new set/ or medium.
I would not be surprised if  computer tapes are a more reliable archive
medium than CD-R's

George

Re: M lenses (long)

[george de fockert]

- Original Message -
From: "Bob S" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, October 08, 2003 2:09 AM
Subject: Re: M lenses (long)


> These lenses perform nearly identically to the K lenses they replaced.

Sorry, but I have a different opinion.
And this was discussed before.
I have yet to find a M-lens which (optical) outperforms the K lens it
replaced.

George

see also
http://icthuis.dyndns.org/~pentax/startest/startest.html

Re: The New Marketplace

[george de fockert]

Pål wrote :

>
> REPLY:
> The whining about the lack of compatibility with lenses more than 20 years
old is equally meaningful as whining about the lack of Asahiflex
compatibility of the LX back in 1980.
>

Not realy, some K/M lenses never got an A or later replacement, the relative
compact but reasonable fast primes !
If I look at my most used lenses in my photo bag :

what I have-> what I should buy new/used for using one lens set for my
film (slide) and pentax DSLR

fish eye 17/4-> replacement 16/2.8 (twice the size) or the fishe eye
zoom.
M 20/4-> replacement  A/FA 20/2.8 (twice the size) or the FA
20-35 zoom
28/2.0-> replacement A 28/2.0 (who can find one) or the very
expensive FA 31/1.8
50/1.2 or 55/1.8 -> replacement A/FA 50/1.4  (I have a A 50/1.4, and various
A 50/1.7, so this would do )
macro 100/4 -> replacement  various bulkier macro lenses.
or 85/1.8-> replacement FA 85/1.4 (very bulky)
A* 200/2.8  -> stil usable

I shoot a lot of slides and some film, the film loaded camera will then be
replaced by a DSLR.
As you see, a DSLR with crippled K mount means almost a complete replacement
of my most used lenses.
Would you choose Pentax if you had to start from scratch again ?

The problem is that in the eighties, the compact fast primes in the popular
range are replaced by the 28-80 zooms.
If you wanted a faster lens, then it was most of the time a very expensiive
very fast prime. (20/2.8 85/1.4 135/1.8 etc.)

So, people like me kept those M/K lenses !
And now we should dump them because of the extra cost of a aperture
simulator ?

George

Re: smc P FA-J

[george de fockert]

Lower case smc already with us even before the pentax-M series were
introduced.
First lowercase SMC in 1976 ? ( smc PENTAX 1:2 55mm)

George

- Original Message -
From: "collinb" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, June 06, 2003 3:26 AM
Subject: smc P FA-J


> I see the lenses are on the US site.
> Interestingly, all (as far as I have looked) "smc" is all lower case now.
> Must be inferior to old SMC lenses.  ;(
>
> Collin
>
>

Re: ? on A70-210/4

[george de fockert]

- Original Message -
From: "collinb" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, April 03, 2003 12:59 AM
Subject: ? on A70-210/4


> This question is for someone with knowledge of the internal mechanics:
> I picked one up today.  Cheap as always.
> ($35 w/ K1000 & 50/2!)
> Anyway, focus & zoom generally work ok.
> Collar is nice and firm.
> But it has a focus movement that (I think) should
> only exist when in Macro position.  But it makes
> the extra turn throughout the zoom range.
> Thoughts?
>
> Collin
> *

Hi,
probably someone opened the lens and removed the front (focussing) element
with its focusing tube, and put it back in the wrong thread of the
multithreaded focus mechanism.

George

Re: *ist D and FA J mounts

[george de fockert]

- Original Message -
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, April 02, 2003 2:20 PM
Subject: Re: *ist D and FA J mounts


>
> Hi Dario,
>
> > http://digilander.libero.it/aohc/pshw2003/monte.htm
>
> You have done a wonderful job of explaining the evolution of the K-mount
> and voicing our (my) concerns about Pentax's recent introductions!
>
> Regarding the diaphragm actuator on the FAJ lenses.  My gut feeling
> tells me that it is fixed, and deflects the body's respective lever all
> the way.  Just like the mirror lenses, this indicates to the body that
> the lens will not stop down during exposure.  However the FAJ lenses DO
> CLOSE during exposure, and this causes underexposure.
>
> Do note that this is only a speculation on my part.  Although I am
> convinced that this is the case, I might be wrong.
>
> Cheers,
> Boz

More speculation from me,
the aperture simulator corresponds with the lens minimum aperture, in stead
of  full open.
The only position which makes it usable (at least gives a valid exposure)
with pre A camera's

George

Re: Pentax <--> Canon

[george de fockert]

- Original Message -
From: "Bojidar Dimitrov" <[EMAIL PROTECTED]>

>
> Canon EOS
> =
>
>
>   + electronic aperture control: the aperture can be placed anywhere in
> the lens, no mechanical coupling, very fast and precise

Hi Boz,

Can you enlight me on this claim, because I have repaired several Canon EOS
lenses, and found that
the aperture motor is a stepper motor.
Stepper motors are not very fast motors, so I doubt that they are faster
than a spring loaded aperture mechanism.

Also the electronic motor takes room, and I admit that Canon lenses have
lots of free space in their much too bulky barrels.
This bulky barrel is probably the reason that these plastic lenses feel
mechanical unexpected solid.

And aperture mechanisms cannot be placed anywhere in the lens, because it is
dictated by the optical design.
There are very few lenses (except the older very long lenses) where
apertures are placed at the optical wrong position.

George

P.S. already sold the 24-35 zoom ?

Re: Favourite K mount normal lens poll

[george de fockert]

> A50 2.8 MACRO IS NOT A "NORMAL" LENS.
>
> IT WILL NOT PERFORM AT INFINITY AS
> WELL AS THE OTHERS LISTED WILL. IT'S
> COMPROMISED AT INFINITY FOR BETTER
> CLOSEUP PERFORMANCE.
>
> JCO
>

Macro lenses are generally not compromised at infinity, just for having low
field curvature, also when used for closeup.
And in the case of the  A50 2.8, it has a floating element, probably to give
good results over the whole distance range.

George

P.S. I like the 55/1.8 or 55/2.0 the most. (I think its the extra 10% that
does it)

Re: brochure pics

[george de fockert]

- Original Message -
From: "Rüdiger Neumann" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Saturday, August 17, 2002 2:52 PM
Subject: Re: brochure pics


> That are nice brochures, especialy the one about the Pentax lenses. It is
a
> pity, that they are not in english.
> Does anyone know, if there are english versions on the net.
> regards
> Rüdiger Neumann
>
>

No,
but these are more readable for germans.

http://icthuis.dyndns.org/~pentax/html/folders.html

George
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Re: 50/2.8 A, F, FA macros compared (was FS: AF400FTZ and FA 50/2.8)

[george de fockert]

> >> Collected comments (just 1, actually) on the 50/2.8 PKA, which
> >> has a max. magnification of 1:2: O.U. Peterson: "All metal.
>
> > Wrong, its partly plastic,
>
> It does seem to me as if the aperture ring is probably plastic.
> However, the aperture ring nonetheless seems to have a nicer feel
> than the more obviously plasticky aperture ring on the A 50/1.7.
>

And the focus ring is plastic.

> > but this lens has also a floating element ( am I the first to have
> > noticed this ?)
>
> I hadn't noticed, but I don't really know how I would.  Just what
> did you see that allowed you to determine this, George?
>
> Fred

I noticed a zoom lens like mechanism when looking in the lens from the back.
And indeed, the second lens/group seen from the front does move as a
function of the focus ring.

George
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Re: Telescopes instead of super telephotos? (WAS: Pentax-A* 1200/8 ED IF)

[george de fockert]

> George wrote:
>
>
> >That must be very irrational, because pentax has more interresting
> >telescopes in that focal range.
> >And these have the additional advantage, that they can be used for medium
> >format !
>
>
> How are these telescopes for ordinary photography? Do they compare in
> quality and price?
>
> Pål
>

Unfortunately for most list readers, its all german.

for a test : http://www.astrostudio.at/pentaxtest.htm

for price, they are not cheap, and have one disadvantage for daytime use, no
aperture mechanism.

http://www.astrostudio.at/125sdp.htm

http://www.telescopes-by-pentax-gmbh.com/DE/download/Pentaxpreisliste.pdf

more info starting at their homepage
http://www.telescopes-by-pentax-gmbh.com/DE/homepage/index.html

Personally, I think they are a bit too expensive for me, but so are the SMC
PENTAX-A 1200/8 etc.

George
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Re: Pentax-A* 1200/8 ED IF

[george de fockert]

From: "Pål Audun Jensen"
> Has anyone actually used or even seen this lens? Just curious...
>
> (I admit having an irrational lust for this lens...)
>
>
> Pål
>

That must be very irrational, because pentax has more interresting
telescopes in that focal range.
And these have the additional advantage, that they can be used for medium
format !

George
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Re: AF280T- Downloadable Manuals at Pentax.com

[george de fockert]

Hi Bob,

The problem is that the files should not be 700K for a page.
I have scanned many A4 size pages, which I compressed to about 100K to 150
K, and are still readable.
This AF280 manual is probably much smaller.
Each page can probably compressed to about 50K, and then your modem is not
such a problem anymore.

George de Fockert



- Original Message -
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, February 04, 2002 9:39 PM
Subject: Re: AF280T- Downloadable Manuals at Pentax.com


> As I noted before, I scanned an AF280T manual Saturday and am looking to
hand it off to somebody to host it and put it into a pdf format.  I've got a
couple of volunteers (Christian S. and Fritz W.), but am just now figuring
out how to send 16 jpg's of 700K out on my 56K modem.  :-(
>
> What about some of our other members who are posting manuals?  Would you
want this one too?
>
> Regards,  Bob S.
> -
> This message is from the Pentax-Discuss Mail List.  To unsubscribe,
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Re: Which A series lenses have metal aperture rings?

[george de fockert]

> I've got a 28mm f/2.8, 50mm macro 2.8, and 50mm f/1.7. The first two
> have metal aperture rings, while the latter has plastic. Does anybody
> have copies of the first two with plastic, or the latter with metal? Did
> Pentax make all of the copies of a particular lens with the same
> material, or did they make the early ones with metal, and later ones with
> plastic?
>

General remark for plastic in the A series :
the more pentax expected a lens to sell, the more plastic in it.

50/1.7 mostly plastic
50/1.4 half plastic
200/2.8 very little plastic
etc.

Looks that a plastic mould only pays of for large production lots.

George
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Re: Winder ME II

[george de fockert]

> Hi,
>
>
> AFAIK, after pressing the shutter release button on the winder the motor
> starts winding and _after_ that the shutter is triggered mechanically.
> Once the picture is taken the winder advances to the next frame. I find
> the mechanical triggering of the shutter strange, because the motor
> produces considerable amount of torque and vibrations to the body. If all
> of this would have been made with electrical triggering, the vibration and
> shutter delay wouldn´t have been a problem. Man I hate shutter delay :)
>
> So the question goes: are these assumptions correct, or is there some kind
> of a fault in the winder or the body?
>
>   -Matti Eteläperä, Oulu, Finland

The winder ME-2 was designed for the ME-super and also worked for the ME.
These had a mechanical activation of the shutter.
The pin in the bottom of the ME-super actually moven the camera release
button down.

The super A has an electrical release, that activated by the same mechanical
release in the winder as used for the ME.
So, when the winder release button is pressed, the winder motor moves a
mechanical pin which activates the electrical super-A switch.
Thats the cause of the shutter delay.

George
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Re: 50/1.2 Variations

[george de fockert]

- Original Message -
From: "Shel Belinkoff" <[EMAIL PROTECTED]>

> Can you account for the weight difference?
>
> Pål Jensen wrote:
>
> > There is no plastic on the A 50/1,2. I took
> > one fully apart after being drowned in seawater
> > and I couldn't find a single plastic piece.
> --
> Shel Belinkoff
>

I am not Pål, but one reason to prefer the early K series lenses is the use
of brass in the focussing mechanism,
just as in the screwmount Takumars.
Later K and M series optics use aluminum, and this works only smoothly as
long as there is enough grease.
Brass is a lot heavier than Aluminum, so that is probably the reason that
the K lens is heavier.
The cheaper A optics use plasic in their focussing mechanism, which is very
resistant against seawater :-), the only advantige ?

George
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Re: New Pentax digital SLR

[george de fockert]

- Original Message -
From: "Pål Audun Jensen"

>Firstly, its generally assumed industrywise that the small
> size chips are a dead end. Full frame chip is the way of the future.
>Thirdly, Pentax have clearly stated that they want to
> make a COMPETITIVE digital slr in the near future. In fact, the 6Mpix MZ-D
> was dropped because Pentax saw no point in having the most expensive
> digital slr on the market while other manufacturers could offer the same
> performance for much less.
>
> Pål
>

In the semiconductor industry, the cost of a chip is directly related to the
size of the chip, so full  (35mm) frame sensors will always be expensive.
This implies that we can't expect a full frame SLR from PENTAX ?

George
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Re: Philips has announced a 11 Megapixel chip

[george de fockert]

Old news,
seen this one 5 or 6 years ago

http://www.research.philips.com/pressmedia/highlights/laccds.html

george

- Original Message -
From: "Brendan" <[EMAIL PROTECTED]>

> for mid '02 (4008 x 2672 pixels). For medium format
> though ... at a target price of 6000 Euro , 11 mega
> pixel 645D anyone!!!
>
>
> ___
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Re: All lens data missing from the KMP

[george de fockert]

Boz,
>
> Unknown maximum magnification:
>

For the not FREE or IF types this can be calculated from the shortest focus
distance.

>
> FA* 500/4,5:
> cap type (clip-on, slip-on), internal cap diameter,
> cap material (rubber, plastic, metal)

A new 500mm lens ?

>
> 1000/8:
> cap type (clip-on, slip-on), internal cap diameter,
> cap material (rubber, plastic, metal)
>

Metal slip on cap.

George
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Re: What did all those "A" lens contacts do on A-series cameras?

[george de fockert]

> I was just writing up a description on an A3000 that I'm putting on eBay
> and I found myself wondering what all those contacts were doing on the
lens
> mount when the A-series lenses only had the one switch contact.
>
> Anyone have any definite information?

http://www.bdimitrov.de/kmp/extras/K-mount/Ka.html

> I can't imagine that all those extra
> contacts are connected to anything inside the A3000, but I'm not about to
> start taking it apart to find out!

I did,
the A3000 (or A3 in my case) does not use contacts r1,r2 and r3

>
> --
> Mark Roberts
> www.robertstech.com
>

George



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Re: What ever happened to... (and some other questions)

[george de fockert]

- Original Message -
From: "John A. Hufnagel" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, August 21, 2001 4:57 AM
Subject: What ever happened to... (and some other questions)


> ... The Asahi Optical Company symbol that was on the pentaprism of
> Pentax cameras? My K-1000 has it, my Spotmatic SPII has it, but my ZX-5n
> doesn't.  Also, it only says 'Pentax', not 'Asahi Pentax'.

The MX and ME are the last ones with the logo.
These are also the last ones with a metal cap (except the LX)

> Were there any Spotmatic SPII's shipped with the split-image range
> finder screen vs. the standard microprism screen?

Split image screens could be installed at the factory/repair shop as an
option.
I have a SPF with a non standard split image.

>
> Finally... Anyone got a source for repair manuals for the SMC Takumar
> 1:1.4/50 lens?  The distance scale has come unglued and doesn't move
> when the lens focuses, and the front mount for filters has had 2 of the
> 3 mounting screws work their way completely off and disappear, with the
> 3rd getting ready to fall out

If you need a manual, you are probably not the right guy, and lacking the
proper tools
to do lensrepairs.
Or you should learn it on some cheap lenses first.
This lens is easy to repair, but you need some experience and the proper
tools.

George de Fockert




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scanned pentax stuff

[george de fockert]

Pentax literature (most of them dutch)

The originals scanned at 300dpi to PNG, but the files here are at height/3,
width/3
so effectively filesize/9 and in medium quality jpg to keep the size (and
download time) low.
I am not planning to put the full resolution files on this server with my
current bandwith limitations.(max 15Kbyte/second)

George de Fockert

 dumped on the server :  ftp://icthuis.dyndns.org/pub/pentax/jpg_mini
(table painfully manual alligned, how can I get rid of this stupid
proportional font in outlook)

  003101_eng LX (24)
  06021 MV (13)
  06075_nl   de vele ogen (9) ( A2 size lensposter included! )
  06105_nl   super A (28)
  06221_eng   6x7 (20)
  06225_nl   MG (16)
  06241 MX (12)
  06255_nl   program A (20)
  06730_nl   ME super (16)
  06755 K series (8)
  06995_nl   dental (4)
  K1000K1000 (4)




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Re: Pentax-A 35-210 3.5-4.5

[george de fockert]

> george de fockert wrote:
>
> > Personally I think that it is not made by pentax,
> > I find the construction very 'unpentax'
> > - The aperture ring shows some backsides from screws.
> > - The stray light is prevented by some furry tube shifting in and out
with
> > the zooming translation
> >  Both I have not seen in any other pentax lens.
> >
> > George
>
> Do you mean that is just 'different' or is the build quality poorer?
>
> Nenad
>
>
Just different, build quality is like every early 80's metal lens.
much better than the current plastic crap.

George



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Re: Pentax-A 35-210 3.5-4.5

[george de fockert]

> > The 35-200 is the only possibly rebadged 3rd party
> > A-lens that I am aware of (I don't know the 35-135
> > though).
>
> I have had the A35-210 in ma hands, and it seemed to be a genuine Pentax
> A-series lens.  VERY similar in look and feel to the A70-210A.
>
> Cheers,
> Boz
>

Personally I think that it is not made by pentax,
I find the construction very 'unpentax'
- The aperture ring shows some backsides from screws.
- The stray light is prevented by some furry tube shifting in and out with
the zooming translation
 Both I have not seen in any other pentax lens.

George



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Re: LX with AF, realy it works !

[george de fockert]

> Kool. Where did you find those pics?
> Steve Larson

On my hard disk,
Maybe experimenting with an old camcorder and a videograbber had something
to do with it,
or that large amount of messages about a LX successor with AF last week..
Or both :-)

George



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Re: LX with AF, realy it works !

[george de fockert]

> Links do not seem to work. Are there athers?
>

oops

 ftp://icthuis.dyndns.org/pub/pentax/lx_af1.jpg

  ftp://icthuis.dyndns.org/pub/pentax/lx_af2.jpg





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LX with AF, realy it works !

[george de fockert]

For those who can't wait, some spy pictures of a LX with working AF, looks
that pentax needed some ricoh help !

ftp://icthuis.dyndns.org/pub.pentax/lx_af1.jpg

ftp://icthuis.dyndns.org/pub.pentax/lx_af2.jpg

:-)



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Europe version of Z-1P differs from rest of world ?

[george de fockert]

Hi all pentax gurus,
I just found a cable switch F between the occasions at a local store.
Still in its box and with the operating manual, which states :

Specifications
Usable Cameras :
Pentax Autofocus SLR cameras except Z-1p in Europe
Zoom 105 Super/Zoom 105R
Zoom 90/IQ Zoom 900
etc.

But why should it not work with a Z-1p in Europe ?

George de Fockert



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Pentax CCD spec V0.1 was (Pentax CCD back design)

[george de fockert]

>-CCD
>None found yet

a nice one :
http://www.research.philips.com/pressmedia/highlights/laccds.html
or the tiny little version : http://www-us6.semiconductors.com/pip/ftf3020c


George


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Re: Stiff aperture rings

[george de fockert]

Pål,
To do a quick check if its mechanical or dirt, let 1 drop (indirectly
applied) of WD40 creep behind the aperture ring.
If that loosens it up after some movement, its dirt.
The effect is temporary, (weeks ?) so a more definite cleaning is required.

George



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Re: lens of the week: 2000/13.5 and M 2000/13.5

[george de fockert]

From: "Bojidar Dimitrov" <[EMAIL PROTECTED]>

> Hi,
>
> a question to the optical-formula gurus.  Pentax describes the optics of
> this mirror lens as 6 elements in 4 groups.  Looking at the diagram that
> they provide us, I see 8 elements.  I will number them 1 through 8 when
> looking from left to right.  1 and 2 as well as 5 and 6 seem to be forming
> the two two-element groups (like the optical formula suggests), but what
> about the rest?
>
> I am thinking like this:
>
> - elements 2 and 3 must be mirrors, so they might not be counted towards
>   the number of optical elements.  Now we are down to 6 elements which
>   agrees with Pentax.  But the number of groups is now 5.
> - alternatively, element 8 is the screw-on filter, so that might not be
>   counted.  Then we are left with 7-5.  Still doesn's fit.
>
> Your ideas are welcome.  Cheers,
> Boz
>
>

Boz,
my interpretation :
first group of 2 elements, some schmidt/maksutov like corrector forms a
group with the secundary mirror.
Second group of 1 element is the primary mirror (maybe mangin mirror?)
light goes then to the already mentioned secondary mirror, and then back to
the third
group af 1 element, a negative lens.
Then the  2 element fourth group, some kitted achromat.

So, now we have 4 groups and 6 elements, although I have my doubts if it is
right to
consider the corrector/secondary mirror one group.

The last 2 elements, are the 2 filterwheels.
one for the color filters, and one for the ND filters
Probably not counted as elements.

George


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Re: Severe GeoMagnetic Storms

[george de fockert]

Even some red aurora visable here in holland  at this very moment (rare).

George

- Original Message -
From: "aimcompute" <[EMAIL PROTECTED]>
To: "Pentax Discuss" <[EMAIL PROTECTED]>
Sent: Wednesday, April 11, 2001 11:28 PM
Subject: Severe GeoMagnetic Storms


> For those Aurora Watchers out there,
>
> The NOAA Space Weather Site is listing geomagnetic storms in the last 24
hrs
> and currently, as SEVERE.  If the impact holds up, according to "polar
> observer satellite plots"  observable activity could extend deep into the
> mid-latitudes tonight.
>
> This is exciting.  I haven't seen this much activity when going to site
> before.
>
> http://www.sec.noaa.gov/SWN/index.html
>
> Tom C.
>
>
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> This message is from the Pentax-Discuss Mail List.  To unsubscribe,
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>


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Re: Macro flash bracket

[george de fockert]

Pål,
did you look at the Novoflex Makroblitzset at
http://www.novoflex.de/html/produkte.htm
It connects around the front lens, and this way it eleminates exposure
calculations for the flash.
So simple non TTL/AUTO flash units can be used.

George

- Original Message -
From: "Pål Jensen" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, April 09, 2001 11:59 PM
Subject: Macro flash bracket


Anyone with tips on a lightweight flash bracket for use on my FA* 200/4
macro?

Pål

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Re: Winder ME II cable release diagram

[george de fockert]

Ralf,
I also managed to get the lightmeter on without any batteries in the winder.
to what did you connect pin 2 to, camera chassis ?
I have no explanation yet, and do not think it is reliable, because
otherwise Pentax could remove 2 contact pins from its
winder/camera interface.
Probably to do with unintentional capacitive coupling ?

George

- Original Message -
From: "Ralf Stubner" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, April 06, 2001 3:33 PM
Subject: Re: Winder ME II cable release diagram


"Cyril MARION" <[EMAIL PROTECTED]> writes:

> I have cabled my remote triger according to George's contribution (pin
> N°2 is useless).  But I understand (from Ralf's contribution) that
> sometimes pin N°2 trigs the light meter.  Is this feature implemented
> on specific Me II Winder series or in all models ?

I just made some tests this morning with my ME II winder and my ME.  At
least with this combination I am able to trigger the light meter with
pin N°2 when both camera and winder are set to 'auto'.  Interestingly
this does not depend on whether or not there are any batteries in the
winder.  So with my winder pin N°2 works the same way as half depressing
the winder button, and I know that I haven't done any changes to the
wiring of the winder.  But maybe one of the previous owners?

cheerio
ralf

--
Ralf Stubner 

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Re: Winder ME II cable release diagram

[george de fockert]

Dear Cyril and Ralf,

The ME-II winder remote contacts do not turn the meter on, the camera does
when fired.
The winder contacts are simply connected to the battery (shortening them
gives sparkles (!)), and
the other justs starts the winder motor, which mechanically activates the
ME/ME-super shutter release,
or an electrical switch on the Super-A.
The meter is only activated with the winder release button when the winder
switch is on 'auto' !

George , (pleasantly) surprised to find his old postings back on the web.




>From: "Cyril MARION" <[EMAIL PROTECTED]>
>
>Hi Ralf,
>
>I checked the archive page you adviced me and I found interresting
>information, but on my winder it does not work as described.
>
>I found a way to switch the light-meter on : shortcut 2+3 (nothing happens)
>then 2+3+1. To relases the shutter then shortcut  1+3. I'm absolutely not
>sure this is the correct way and I would very much appreciate any
>comments...
>
>I'm using a SuperA on the ME II Winder
>
>Ceers,
>
>Cyril

-Message d'origine-
De: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]De la part de Ralf Stubner
Date: mercredi 4 avril 2001 15:56
À: [EMAIL PROTECTED]
Objet: Re: Winder ME II cable release diagram


>"Cyril MARION" <[EMAIL PROTECTED]> writes:

>> I found no combination of any of these 3 pins which only
turns
>> the camera on (same action as when you half-down depress the winder
button)
>>
>>  _
>> / \
>> | [Winder ME II]  |
>> | |
>> |_/
>> ||
>> |  ° | <--- PIN 1 = ?
>> |°   | > |  ° | >> ||
> \___O/ >
>> PIN 3 + PIN 1 => releases the shutter and turns the camera on at the same
> >time
> >PIN 2 + PIN 3 => sparkles (!)
> >PIN 1 + PIN 2 => nothing happens

>This is quite strange.  I know that my ME II winder activates the meter
>on my ME and on my former ME super when PIN 2 and PIN 3 in your notation
>are connected.  What camera where you using?  Maybe the longer story on
>http://www.tfkp.physik.uni-erlangen.de/~ralf/photo/PDML/FAQ-8.html#ss8
.
>2>
>can help you, which might be one of the older postings you where looking
>for.

>cheerio
>ralf

>Ralf Stubner 




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Re: 24/3.5 hood question

[george de fockert]

From: "Daphne" <[EMAIL PROTECTED]>

> anyone knows is the clamp-on tak 24/3.5 hood (its 60mm diameter) will
> work on the SMC 24/3.5-K (58mm diameter)? I have the lens on its way and
> am wondering should I grab the hood, I havent seen many of these around
> (but then I havent looked for one before, either) ?
>
> Thanks for your imput!
>
> Daphne
>

From: "Shel Belinkoff" <[EMAIL PROTECTED]>

> Does anyone know if the Tak 24/3.5 hood will fit on a K24/2.8?
> --
> Shel Belinkoff
> mailto:[EMAIL PROTECTED]

yes, I know.
The Tak 24/3.5 hood (58mm) fits perfectly on the K 24/3.5 (58mm) , but not
on the K 24/2.8 (52mm)

George






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Re: 24mm Lens Hoods

[george de fockert]

From: "Shel Belinkoff" <[EMAIL PROTECTED]>

> Does anyone know if the Tak 24/3.5 hood will fit on a K24/2.8?
> --
> Shel Belinkoff
> mailto:[EMAIL PROTECTED]

yes, I know.
The Tak 24/3.5 hood (58mm) fits perfectly on the K 24/3.5 (58mm) , but not
on the K 24/2.8 (52mm)

George




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Re: Pentax says there will come new AF lenses...

[george de fockert]

From: "Pål Jensen" <[EMAIL PROTECTED]>
>> How many of the other brands (you know the names :-)
>> have sealed bodies ?
>
>
>F5 and EOS-1v
>
>BTW  Pentax was first with a body selaed against the lements (LX; of course
excluding underwater cameras)


Hm, what about the NIKONOS ? much earlier, much better sealed. (OK its not
an SLR)

George

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